Fix a bug in branch adjustment: when neither label follows a conditional branch, a temporary label is properly created.

See merge request !38

X86 const pattern

See merge request !37

fix

See merge request !36

Use refined CI configs

See merge request !35

A few performance improvements

See merge request !34

Extra validation

See merge request !33

should remove it later)

replace malloc/free)

Fix signature equality

See merge request !32

Merge branch 'fix_signature_equality' of gitlab.anu.edu.au:mu/mu-impl-fast into fix_signature_equality

This reverts commit 58b884a7.